139318306 has 8 divisors (see below), whose sum is σ = 209088000. Its totient is φ = 69622308.

The previous prime is 139318301. The next prime is 139318307. The reversal of 139318306 is 603813931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×139318306³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (139318301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13426 + ... + 21421.

It is an arithmetic number, because the mean of its divisors is an integer number (26136000).

Almost surely, 2^139318306 is an apocalyptic number.

139318306 is a deficient number, since it is larger than the sum of its proper divisors (69769694).

139318306 is a wasteful number, since it uses less digits than its factorization.

139318306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36848.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 139318306 is about 11803.3175844760. The cubic root of 139318306 is about 518.4052547391.

The spelling of 139318306 in words is "one hundred thirty-nine million, three hundred eighteen thousand, three hundred six".